US 12,070,714 B2
Filter unit for a barrier system and barrier system, in particular isolator
Thomas Bertsche, Rielasingen-Worblingen (DE); and Thomas Kassner, Radolfzell (DE)
Assigned to OPTIMA pharma containment GMBH, Radolfzell am Bodensee (DE)
Appl. No. 17/042,510
Filed by Metall + Plastic GmbH, Radolfzell (DE)
PCT Filed May 31, 2019, PCT No. PCT/EP2019/064185
§ 371(c)(1), (2) Date Sep. 28, 2020,
PCT Pub. No. WO2019/233892, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. 10 2018 113 609.9 (DE), filed on Jun. 7, 2018.
Prior Publication US 2021/0086125 A1, Mar. 25, 2021
Int. Cl. F16K 27/02 (2006.01); B01D 46/42 (2006.01); F16K 1/226 (2006.01); F16K 31/04 (2006.01); B01D 46/00 (2022.01)
CPC B01D 46/4272 (2013.01) [F16K 1/2263 (2013.01); F16K 1/2265 (2013.01); F16K 27/0227 (2013.01); F16K 27/0232 (2021.08); B01D 46/0005 (2013.01); B01D 2265/022 (2013.01); B01D 2271/02 (2013.01); F16K 31/042 (2013.01); F16K 31/045 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A filter cartridge (1) for removable insertion into a return air duct or exhaust air duct (2) of a barrier system (3), the filter cartridge (1) having filter means (8) extending around a longitudinal axis (A) of the filter cartridge (1) for cleaning of gas supplied in an axial direction via an opening (6) from a treatment chamber (4) of the barrier system (3) and for radial discharge into the return air duct or exhaust air duct (2), the filter cartridge (1) having an interior (7) which can be closed by closing the opening (6) by means of a lid (10) and which is surrounded by the filter means (8) on a radial outside, the filter cartridge (1) further comprising a closure device (28) for the filter cartridge (1), the closure device (28) comprising a main body (30), an annular seal (11), the opening (6) in the main body (30) which can be limited at a circumference by the annular seal (11), the lid (10) which can be displaced between an open position, in which the opening (6) is open, and a closed position, in which the lid (10) contacts the annular seal (11) in a sealing manner, in order to selectively open and close the opening (6) and through which the longitudinal axis (A) passes, the lid (10) being connected to the main body (30) in an articulated manner so as to be pivotable by means of at least one rotary joint (40) through which a pivot axis (S) passes,
wherein
the lid (10) is designed so as to be pivotable at least double-eccentrically, a first eccentricity resulting from a pivot axis (S) being disposed at a distance (A1) from a closure section plane (E1) in which a closure section (36) of the lid (10) is located, and a second eccentricity resulting from the pivot axis (S) being disposed at a distance (A2) from a vertical longitudinal median plane (E2) which passes vertically through a center of the lid (10) when the lid (10) is in its closed position and the main body (30) having four closure catches (34) of a bayonet mount which are equally spaced apart on an end which can face the barrier system (3) for removable fixation to the barrier system (3), and wherein the annular seal (11) has an approximately C-shaped cross section and two socket sections (46), wherein the two socket sections (46) engage fastening grooves (48) at a flange (32) of the closure device (28).